Eb 7alt, 4th inversion (F# in the bass)
Also written as Eb7alt/F#.
Notes, from the bass up
F# (bass)BD#GC#E
The same notes as Eb 7alt (F#, B, D#, G, C# and E), rearranged so F# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.